Gas-burner.



H. RUPPERT.

GAS BURNER.

' APPLIOATION FILED DEO.11, 1909.

977,904. Patented Dec. 6, 1910.

mml-n N f 3/ 1 f 7 l E 7 a 5%) 2 i i l heat of the ii miss stains sc ssor ssh-ion.

sins sssraar, cs ZURICH, swis-znannnn.

GAS-BURNER.

To all whom it may m'msrn:

Be it known that i, Hans Rnssrmc, a cit-izen of the Republic of Switzerland, residing at 51 Knrvcnstrssss, Zurich,- Switzerland, have inventsd certsi n new and nsefiil Improvemen'ts in Gas-Burners; casino horoby declare the following to a full, clear, and exact description of the invsntion, such as will enableothcrs skilled in the art to which it appertains to make and. use the same, reference being has to the accompanying drawings, and to letters or fi'gnms of re eren'ce marked thereon, which form a part of this specification.

'Mv invent-ion relates to improvements in gas Burners provided with anautomatic igniting-device. Such burners have already been constructed with means, which on the i burner cock being opened, scraps particles from a member made of an alloy of a rare earth'metal and iron, thus causmg sparks,

which ignite the issuing current of. gas. In these burners, however, the scraper andtho said member are both located above the gasexit of the humor, that is to say they lie in the very center of the Tne result of this is that the hard metal or other scraper is heated to incandescence by-the flame, and is thus soon worn out.

According to my invention Iovercome the drawback just referred to by locating the scraper and the rare earth-metaiand iron alloy member below the gas exit, that is, outside the province of the flame, sothat' the scraper is no longer exposed to the intense ame. A practical embodiment of the invention is illustrated in the accompanying drawing, in whichgallery being shown in section. Fig. 2 is o vrtical section. Fig. 3 is a section on the line A--A of Fig. 1. Figs, 4; and 5 are soctional elevations depicting the lower portion of the device, with the operative parts in two successive positions.

1. is the nozzle-carrier, 2 the cock-plug, and 3 the nozzle, 4 is the mixin -tube and 5 the burner-head,- while 6 is t e gallery and 7 the arms supporting the latter. Bolow the head 5 there-is aifixed to two of the arms 7 a carrier 8 .(Figs. 1 and 3) whose top part constitutes a guide 8 to receive two slidable bars 9, 10 the lower one9 of which is" made of an alloy of a rare earthmetal and'irn; Below the guide 8 there is specification of narcis- Patent.

wii'cstionfilsd December ll, 5439.

Figure]. is an elcvation ofthe burner, the- ?atonted Doc. 6, iii 1i Serial No. 532,588.

screwed into the carrier 8 a pin 11, which serves as axis for a bushing 12. On this latter there is mounted a steel or other'hard .msial' segmental shaped oscillatory scraper 13. The scraper 13 is returned to its initial position after each movement by a fiat spirally coilcd spring 14, whose one end is The cock-plug 2 is furnished with an arm 1?, whose end is chemfercd and bears against the tail 13' ofthe scrapsn-which-is likewise chamferod. The plug 2 is cut away vpcripherally at 18, the recess communicating with the passageway 2 for the gas. By turning the plug, the recess 18 conho brought opposite a channel 20, which conducts to tho ignition-tubs 19. The channel 20 can be more orless closed by means of a regulating screw 21. The top of the tuba'lQ, which lies outside the burner-head 5 is located at the level of the lace where the bar 9 rests 'onthc scraper i 1).

The c oration o the mechanism is as follows en the cock 2 is closed, the gas supply both to the burnler and the ignition tube 19 is cutofi (position Fig. 1) "if however, the cock is opened, its arm 17 will bear upon the tail 13 of the scraper i3, and oven coming the action of the spring 14, will turn the scraper against the our 9. At the some time the recess 18 in tlioplug 2 will arrive opposite the mouth of the channel 20, whereby the gas, entering through thcvpartiaily opened passage 2, has free access to the tube 19, out of the to of which it will issue (position Fig. 4). 811 further rotation of the cock-plug 2, however, the arm 17 will release the scraper 13 and the latter will snap back in the direction of the arrow, Fig. 4, into the position Fig. 5, under thoziction of the spring is, and in doing so its roughened peri hcry will scraps minute particles from the inir 9 and cast them in the direction of the orifice of the tube 19. The sparks thus occasioned will ignite the gas rushing from the tube 19 with the result that a flame will shoot forth reachingup to'the lcvelcf 9 can be renewed when wholly orn down.

Since the scraper 13 and the bar 9 are located below the burner-head 5, and are thus outside the province of the flame, the scraper is not exposed to the intense heat of the flame and thus retains its hardness, whence it will always reliably operate.

Having now particularly described and ascertained the nature of the said invention and in what manner the same is to be performed, 1 declare that. what I claim is:

1. ln a gas burner, in combination, a cock controlling the burner passage, a carrier presenting a guide secured to the burner, a scraper pivoted to said carrier and actuated by the cock-plug, a member sliding in.said guide and consisting of an alloy of iron and a rare earth-metal from which sparks are struck by the scraper, said scraper and memher being located below the gas exit and outside the province of the flame, and means for conducting an ignition gas jet to the neighborhood of the place-Where the sparks are produced, substantially as described.

2. In a gas burner, 1n combination, a cock controlling the burner passage, a carrier presenting a guide secured to the burner, a scraper pivoted to said carrier and actuated by the cock-plug, a member sliding in said guide consisting of an alloy of iron and a rare earth metal from which sparks are struck by the scraper, said scraper and member being located below the gas exit and outside the province of the flame in such relative posit-ion to each other that they are always in contact with each other and means for conducting an ignition gas jet to the neighborhood of the place Where the sparks are produced.

In testimony that I claim the foregoing as my invention, I have signed my name in presence of two subscribing Witnesses HANS RUPPERT.

Witnesses HERMANN GRAF, CARL GUBLER. 

